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1.1 ! root 1: ! 2: ! 3: pun Definition pun ! 4: ! 5: ! 6: ! 7: ! 8: In the context of C, a pun occurs when a programmer uses one data ! 9: form interchangeably with another. A pun most often occurs unin- ! 10: tentionally when the programmer fails to declare a function as ! 11: returning a pointer; by default, what the function returns is as- ! 12: sumed to be an int, and is handled as such. No trouble will ! 13: arise if the program is run on a machine that defines an int and ! 14: a pointer to have the same length (e.g., i8086 SMALL model); ! 15: however, such code cannot be transported to an environment in ! 16: which this is not the case (e.g., i8086 LARGE model). ! 17: ! 18: ***** See Also ***** ! 19: ! 20: definitions, pointer, portability ! 21: ! 22: ! 23: ! 24: ! 25: ! 26: ! 27: ! 28: ! 29: ! 30: ! 31: ! 32: ! 33: ! 34: ! 35: ! 36: ! 37: ! 38: ! 39: ! 40: ! 41: ! 42: ! 43: ! 44: ! 45: ! 46: ! 47: ! 48: ! 49: ! 50: ! 51: ! 52: ! 53: ! 54: ! 55: ! 56: ! 57: ! 58: ! 59: ! 60: ! 61: ! 62: ! 63: ! 64: COHERENT Lexicon Page 1 ! 65: ! 66:
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